Home / 38,984.21-53,795.12-21,983.01

Finding the Fourth Proportional to 38,984.21, 53,795.12 and 21,983.01

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Solution

The fourth proportional to 38,984.21, 53,795.12 and 21,983.01 is: 30,334.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,984.21 : 53,795.12 = 21,983.01 : x
  2. Step 2: Convert to fraction form
    38,984.21/53,795.12 = 21,983.01/x
  3. Step 3: Cross multiply
    38,984.21x = 53,795.12 × 21,983.01
  4. Step 4: Simplify right side
    38,984.21x = 1,182,578,660.91
  5. Step 5: Solve for x
    x = 1,182,578,660.91/38,984.21
  6. Step 6: Final answer
    x = 30,334.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.